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| Number | Title | Issue Date |
| 8061172 | Sheet metal bending machine and production line incorporating a machine of this type A roll bender machine for bending metal sheets which includes a roller driven in rotation and about which the sheet metal is rolled and at least two backing rollers adapted to receive and bear against a sheet while it is being bent around the roller. The backing rol... | 11/22/2011 |
| 7337642 | Roll-former apparatus with rapid-adjust sweep box A computer controlled roll-forming apparatus is adapted to provide a repeating pattern of different longitudinal shapes to a continuous beam “on the fly” during the roll-forming process. A sweep station on the apparatus includes a primary bending roller tangenti... | 03/04/2008 |
| 7325427 | Machine for bending of long products and a method to control such a machine A machine is process monitored and controlled for continuous bending of long products to a predetermined radius by using three parallel contact-free distance meters (laser transmitters) and by measuring the distances to the bent surface on the product, by calculatin... | 02/05/2008 |
| 7310984 | Forming apparatus for precambered metal sections A forming apparatus (50) includes a roll former (51) operative to roll form a metal strip (100) to form a profiled metal section (10) of generally C section profile including a pan (12) and a pair of upstanding edge margins (14 | 12/25/2007 |
| 7293682 | Arrangement for belt drive device The invention relates to an arrangement for a belt drive device, which comprises two continuous drive belts, which arc arranged to be operated by means of drive rollers (2), and which are arranged to travel around stretching rollers as continuous loops spaced... | 11/13/2007 |
| 7260969 | Bending machine for profiles and relative bending method Bending machine for profiles in the form of bars sheared to size, including at least a drawing assembly, shearing apparatus and bending apparatus. At least part of the drawing assembly is movable between a first loading position, wherein it is upstream of and remote... | 08/28/2007 |
| 7213431 | Method of manufacturing an aluminum alloy wheel A method of manufacturing an aluminum alloy wheel, comprising the steps of producing an elongated strip of alloy blank with a desired cross-section by squeezing an alloy material, pre-curving the two ends of said blank into arcs, placing one end of said blank betwee... | 05/08/2007 |
| 7076979 | Method and device for producing curved lengths of spring band steel In a method and a device for producing curved lengths of spring band steel in order to produce precisely toleranced, dimensionally stable bending radii, the spring band steel (10) pass through a bending unit (20), which is comprised of three support po... | 07/18/2006 |
| 7040127 | Method and device for forming a pipe A method and a device are proposed which accurately and efficiently form a pipe with a bending machine only, without using any correcting devices. A plate having holes is fed into a bending machine in which under an upper roll, lower rolls parallel thereto are arran... | 05/09/2006 |
| 6843092 | Architectural panel arching device Apparatus for forming an arch is architectural panels including a drive section and an arching section. Each of the drive section and arching section have at least one roller and cooperating follower with the rollers being adapted to engage the underside of the pane... | 01/18/2005 |
| 6820451 | Sweep forming assembly and method A method and apparatus produces a roll formed bumper member comprising of a metal material. The bumper member has a predetermined transverse cross section and a predetermined curvature. A strip bumper structure is fed into a forming assembly along a line level. The ... | 11/23/2004 |
| 6725700 | Bending device and control method thereof The bending device 25 comprises a positioning jig 10 having a clearance opening 8 formed therein for passing an elongate material 1, fixed to a device body, and a movable bending jig 28 having a clearance opening 30 formed t... | 04/27/2004 |
| 6662613 | Long member bending apparatus In a long member bending apparatus having a bending head and a material supply unit, the bending head is composed of a base plate having a guide pipe, which includes a guide hole for passing a long member, at the center thereof, a movable plate having a d... | 12/16/2003 |
| 6339946 | Pipe forming apparatus and method In a pipe forming process using bending rolls, load applied to an upper roll is reduced to suppress the deflection of the upper roll, thereby suppressing creation of large end gap at the longitudinal center of the pipe, thus enabling production of high-st... | 01/22/2002 |
| 6298704 | Portable bending apparatus having transaxial workpiece loading A portable workpiece bending apparatus selectively bends an elongated workpiece at selected portions of the workpiece along its length. The apparatus allows transaxial loading and unloading of the workpiece. The apparatus includes a frame. Three rollers a... | 10/09/2001 |
| 6253591 | Method and apparatus for bending a metallic flanged member A method for bending a metallic flanged member includes the steps of applying a compressive force to a flange 2 of a metallic flanged member 1 in a direction that intersects a longitudinal direction of the metallic member for compression plastic deformati... | 07/03/2001 |
| 6189354 | Method and modular-multistation device for folding profiles The invention relates to a method and multistation device for folding profiles. The folding stations (1, 11, 15, 16, 17) required are modules mounted interchangeable and adjustable on a common machine body (2), which permits quick and simple adaption to t... | 02/20/2001 |
| 6185969 | Machine for bending tubes with small diameter A machine for bending tubes (1) with small diameters, which are pre-cut and provided with connection systems at both ends. This machine comprises elements (5) for grasping the rear end of the tube (1), elements for entrainment of the grasping elements acc... | 02/13/2001 |
| 6173598 | Modular multipurpose bending machine and its linear positioning system A bending machine includes a bending head with three bender rollers, one of which is vertically displaceable with a double-acting cylinder having a cylinder body inside the bending machine frame and below the bending head. A work surface is above the bend... | 01/16/2001 |
| 6092407 | Ring bending machine The invention relates to a ring bending machine for pipes and metal profile rods comprising two supporting shafts supported in spaced relation to one another in a carrier plate and rotatably driven, and a pressing shaft arranged centrically with respect t... | 07/25/2000 |
| 6079246 | Universal machine for bending pipes or section bars to both fixed and variable curvatures Machine for bending pipes or section bars comprising a work table on which two or more powered spindle noses appear, at least one of which is powered to rotate in a direction and at least another is idle or driven to rotate in the opposite direction to th... | 06/27/2000 |
| 6044675 | Roll bending machine with selective digital control device An automatic roll bending machine for bending metal sheets, sections and the like. The machine includes two or more bending rolls and a driver for causing rotation and/or changing the working positions of the rolls. The driver is operatively connected to ... | 04/04/2000 |
| 5927125 | Methods and apparatus for manufacturing helical products Methods and apparatus for forming devices including dead-ends and insulator ties from flat and other strips of material, as well as the devices themselves, are disclosed. Components of these devices may be formed continuously from a single strip, avoiding... | 07/27/1999 |
| 5890386 | Process and plate roll bending machine A process and a roll bending machine for bending plates. The plate to be bent is made to pass between upper and lower gripping rolls parallely arranged between each other; at least one of these rolls is connected to a drive motor for rotation. One of the ... | 04/06/1999 |
| 5884517 | Bending device A bending device which can reduce a change in bend radius caused by movement of a bending jig and which can twist an elongate material using a simple construction. The bending device has a positioning jig 6 with a clearance opening formed therein for pass... | 03/23/1999 |
| 5862698 | Bending device There is proposed is a bending device which has a simple structure, easily performs a control and provides a high degree of freedom in bending. The bending device is provided with a positioning jig 6 with a clearance hole 4 formed therein for passing a ma... | 01/26/1999 |
| 5704242 | Universal ring bender Universal pipe bender comprising a geared motor (1; 11); a box, on a working table whereof two or more pairs of hollow rotary motion drives having fixed parallel rotation axes (2, 2a; 2', 2a'; 2", 2a"; 12, 12'; 12a, 12a') intended to receive, interchangea... | 01/06/1998 |
| 5632174 | Metal bending machine A metal bending machine comprising a lower pinchroller composed of modular interchangeable segments, and upper pinchroller composed of modular interchangeable segments, and a radius roller composed of modular interchangeable segments, the lower pinchrolle... | 05/27/1997 |
| 5499521 | Tube bender apparatus Apparatus intended for bending heavy through thin wall pipe and tubing includes a generally circular bending shoe mounted for rotation about a first axis and having a plurality of semi-circular concave grooves in its outer surface. The grooves are of diff... | 03/19/1996 |
| 5450739 | Needle curver with automatic feed An apparatus for forming curved surgical needles is provided which includes a needle curving system for imparting an arcuate profile to sequentially presented needle blanks and a rotating system for pressing the needle blank against the curving system. Th... | 09/19/1995 |
| 5431035 | Hydraulic pipe bender of large dimension This invention provides a hydraulic pipe bender of large dimension, comprising a frame, roller group, gear group, hydraulic mechanism, clutch, lifting mechanism, guiding mechanism, feeding mechanism, and bending mechanism. A guiding mould of the guiding m... | 07/11/1995 |
| 5425258 | Needle curving apparatus The present invention relates to a needle curving apparatus for curving one needle or a multiplicity of needles simultaneously. The apparatus includes a curving system for bending the needle and a reciprocating drive system for biasing the needle blanks a... | 06/20/1995 |
| 5388441 | Needle curver with automatic feed An apparatus for forming curved surgical needles is provided which includes a needle curving system for imparting an arcuate profile to sequentially presented needle blanks and a rotating system for pressing the needle blank against the curving system. Th... | 02/14/1995 |
| 5337591 | Machine and method of making duct coupling A machine for coiling a sheet metal strip having a pair of lateral flanges joined by a channel shaped rib with oppositely opening lateral grooves where the rib is on the outside of the coil, includes a pair of cooperating fluting rolls between which the s... | 08/16/1994 |
| 5218850 | Roll bending machine A roll bending machine for bending plates or iron sheets comprising an upper roll for dragging the plate, a central gripping roll and lateral bending rolls beneath the upper roll, wherein the flexure of each roll of the bending machine is opposed by a lon... | 06/15/1993 |
| 5187959 | Programmable plate bending machine A roll bending machine for bending plates or iron sheets with a programmable work cycle; a central processing unit (CPU) by suitable sensing means controls the working positions of the rolls of the bending machine adjusting them according to programmed da... | 02/23/1993 |
| 5161401 | Apparatus for producing bent sections in hollow profile strips In order to bend a hollow profile strip (53), especially a hollow profile strip (53) from which a spacer frame for an insulating glass pane is to be produced, the hollow profile strip (53) is conducted continuously for an exactly defined length, held late... | 11/10/1992 |
| 5115658 | Shaping machine for cylindrically bending a plate A shaping machine for bending a plate into a cylindrical shape which comprises a frame and first, second, and third roll assemblies disposed on the frame. Each of the roll assemblies includes a roll for engaging a plate to be bent and a plurality of pairs... | 05/26/1992 |
| 5068963 | Piston rings In the manufacture of a piston ring an intermediate ring is produced by bending a metal strip first to a smaller radius of curvature than required and then bending the metal strip again to increase its radius of curvature. The first and further bends are ... | 12/03/1991 |
| 5036688 | Fender forming system A system of forming a curve in a substantially planar portion of a fender blank consists of a plurality of components and steps. First and second substantially parallel rollers are provided having selected diameters with a gap therebetween adapted to rece... | 08/06/1991 |
